Chemistry HW Assignment Paper

Chemistry HW

35 problems and multiple chances to work on them.

Ch. 2 HW

There are 10 problems. Below is an example of the problems. There are multiple chances on each problem.

Write the symbolic notation of an isotope of an element having 8 protons, 8 electrons, and 11 neutrons. Click on the “Templates” button  and make use of the “stacked super/subscript” button  for entering the mass number and atomic number of the isotope.

Express your answer as an isotope.

1. 3 HW

There are 9 problems. Below is an example of the problems. There are multiple chances on each problem.

Three ionic compounds are represented in this outline of the periodic table-red cation with red anion, blue cation with blue anion, and green cation with green anion.(Figure 1). Give a likely formula for the red compound.

Express your answer as a chemical formula.

1. 4 HW

There are 7 problems. Below is an example of the problems. There are multiple chances on each problem.

Look up the melting points for these two compounds and use the information to identify which is ionic and which is molecular.

TiBr4 is a molecular compound, and TiO2 is an ionic compound.

TiO2 is a molecular compound, and TiBr4 is an ionic compound

Ch. 5 HW

There are 9 problems. Below is an example of the problems. There are multiple chances on each problem.

The transition metals form compounds with oxygen in which the metals have different oxidation states. Calculate the oxidation number for the transition metal in the following sets of compounds.

Mn in MnO2, Mn2O3, and KMnO4